In an area with 2 spinning wheels.
Operated the wall switch to retract the spikes....Then operated a hanging wall switch...which retracted the spikes where the key is...BUT...How do you get out of this area with the 2 spinning wheels????

Still very early in the game ..I don't know how to deactivate these spikes. So far, I killed a snake, and found a jump switch and crawl space that got me some med pacs and shells. Still early in the game. Now I am at this hole, and there are spikes down there that I don't know how to deactivate? Where is the switch? Thank You.

I'm in a room where there was a snake and there is a lever by a door and the door I came from (after a couple of blades) has closed behind me. I could hear the lever doing something but I'm trapped inside, don't know how to go anywhere else from here. Can anybody, please, lend a hand (in case you know what I'm talking about)?